ISO/IEC 20000 Listings - Hong Kong
- ATOS Origin (Hong Kong) Limited
- Automated System (H.K.) Limited
- China Telecom (Hong Kong) International Ltd
- CITIC Telecom International CPC Limited
- COL Ltd
- The Dairy Farm Company Limited - IT Department
- Dimension Data China/Hong Kong Ltd
- Diyixian.com Limited
- FSE Engineering Group Limited
- HDC Data Centre Limited
- HM Information Services Limited
- The Hong Kong and China Gas Company Limited
- Hong Kong Examination and Assessment Authority (the Authority) - UT Division
- Hong Kong Housing Authority Information Technology Sub-division
- Hong Kong Housing Society
- Hong Kong Telecommunications (HKT) Limited - Customer Services - Engineering
- Hong Kong Telecommunications (HKT) Limited - Network Facilities Management
- IBM China / Hong Kong Limited
- Jardine OneSolution (HK) Limited
- Network Box Corporation Ltd
- New World Telecommunications Limited Networks & Information Technology
- Office of the Government Chief Information Officer - The Government of the Hong Kong Special Administrative Region
- PCCW Solutions Limited